The levels of noise necessary to effectively mask the stimuli commonly used in auditory brainstem response (ABR) tests were determined. The relative masking level (RLM) of twenty normally-hearing volunteers was measured behaviourally using ipsilaterally presented unfiltered noise in the presence of ABR stimuli. The upper limit for RLM was found to be typically 30 dB above the stimulus level when the stimulus was calibrated in dBnHL to ISO 389-6 (2007) and the noise was measured in dBSPL. This value is recommended when calculating the level of noise necessary to prevent cross-hearing during ABR testing.
Zen and the Art of ActingAs a philosophy which is in effect a way of life. Zen has offered insights into most aspects of human activity from the martial arts to motorcycle maintenance. Here, Adrian Cairns, associate principal of the Bristol Old Vic Theatre School, analyzes the ways in which, despite their widely different origins, development, and purposes, the tenets of an eastern philosophy actually mesh with the principles common to most western styles of acting.
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